after a partial meltdown at japan's crippled nuclear plant, radiation levels are 100,000 times higher than normal. as the government warns that the contamination is creeping into seawater and the ground, now traces of radiation are being detected as far away as massachusetts. >>> and wedding worries. with just over one month to go until the royal wedding, a huge anti-government protest in london turns violent putting a renewed spotlight on security for the big day. this as new details emerge on everything from the cake to the bachelor party "early" this monday morning, march 28th, bachelor party "early" this monday morning, march 28th, 2011. captioning funded by cbs >>> good morning from london. you are looking at a beautiful day here. we are live at buckingham palace which you see. wedding preparations are under way. there is a renewed focus on security for the big day this morning. as chris mentioned, we're going to get you more information on that after demonstrations turned violent here over the weekend. chris, over to you. >> all right, erica, thank you. we will check back in wit